package wxy3;

public class Dog {
    String name;
    int age = 3;
    double weight = 20;
    public String say(){
        String str = "本汪是：" + name + "   今年" + age + "岁了！！！" + "   今年的体重是（kg）：" + weight + "   汪！";
        return str;
    }
}